"Denis M. Wilson" <d...@oxytropis.plus.com> wrote: > To implement .index as a macro one could consider using .substring > together with the Knuth-Morris-Pratt algorithm. I've done simpler > things eg the equivalent of The C library substr().
Thank you. Would you be willing to share your strstr() macro? I'm surprised nobody has implemented Heirloom Troff's .index, but I guess that's an indication I'm thinking about things in the wrong way. There's probably some other, more natural solution in groff. By the way, is it a goal of groff to support the Heirloom Troff extensions? There are some nice ideas I wouldn't mind seeing in groff, like the \W escape and using standard system fonts. —b9
